Browsing by Author "Fernández Francos, Xavier"
Now showing items 1-20 of 103
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A new two-stage curing system: Thiol-ene/epoxy homopolymerization using an allyl terminated hyperbranched polyester as reactive modifier
(Elsevier, 2013-10-04)
Article
Restricted access - publisher's policyAn allyl terminated hyperbranched polyester (HBP) was added to an epoxy formulation containing a trithiol compound to perform a thiol-ene click reaction. By this procedure a flexible thioether network was formed. The ... -
Acetoacetate based thermosets prepared by dual-Michael addition reactions
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-01-01)
Article
Open AccessA novel set of dual-curable multiacetoacetate-multiacrylate-divinyl sulfone ternary materials with versatile and manipulable properties are presented. In contrast to common dual-curing systems, the first stage polymer ... -
Analysis of the reaction mechanism of the thiol-epoxy addition initiated by nucleophilic tertiary amines
(2017-10-14)
Article
Open AccessA kinetic model for thiol–epoxy crosslinking initiated by tertiary amines has been proposed. The kinetic model is based on mechanistic considerations and it features the effect of the initiator, hydroxyl content, and ... -
Characterization of sequential dual-curing of thiol-acrylate-epoxy systems with controlled thermal properties
(Elsevier, 2019-03-01)
Article
Open AccessIn this work, a novel sequential dual-curing system based on thiol-acrylate-epoxy formulations is developed and characterized. Both reaction stages are thermally activated and sequentially relies on difference in the ... -
Click-based dual-curing thermosets and their applications
(Elsevier, 2018)
Part of book or chapter of book
Restricted access - publisher's policyDual curing is the methodology for obtaining thermosets by combining two different and compatible polymerization reactions, taking place sequentially or simultaneously. Sequential dual-curing processing enables the preparation ... -
Comparative analysis of stochastic network build-up methods for the curing of epoxy-anhydride thermosets
(2014-04-01)
Article
Restricted access - publisher's policyThe network build-up of epoxy-anhydride thermosets has been studied using two different stochastic network build-up methods based on the random combination of primary chains or simple fragments. Explicit expressions for ... -
Comparative curing kinetics and thermal–mechanical properties of DGEBA thermosets cured with a hyperbranched poly(ethyleneimine) and an aliphatic triamine
(2011-11-10)
Article
Restricted access - publisher's policyThe use of commercially available hyperbranched poly(ethyleneimine)s (Hbpei, LupasolTM, BASF) as curing agent of DGEBA has been studied. HBpei can react with epoxy monomers by an epoxy-amine condensation mechanism and get ... -
Controlled composite processing based on off-stoichiometric thiol-epoxy dual-curing systems with sequential heat release (SHR)
(Wiley, 2021-01-01)
Article
Open AccessControl of curing rate and exothermicity during processing of thermosetting composite materials is essential in order to minimize the formation of internal stresses leading to mechanical and dimensional defects in the ... -
Corrigendum: Network structure and thermomechanical properties of hybrid DGEBA networks cured with 1-methylimidazole and hyperbranched poly(ethyleneimine)s
(2013-01-25)
Article
Restricted access - publisher's policy -
Cost-effectively 3d-printed rigid and versatile interpenetrating polymer networks
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-02)
Article
Open AccessVersatile acrylate–epoxy hybrid formulations are becoming widespread in photo/thermal dual-processing scenarios, especially in 3D printing applications. Usually, parts are printed in a stereolithography or digital light ... -
Crosslinking of mixtures of DGEBA with 1,6-Dioxaspiro[4,4]nonan-2,7-dione initiated by tertiary amines. I. Study of the reaction and kinetic analysis
(2008-08)
Article
Restricted access - publisher's policyThe anionic copolymerization of a Diglycidyl ether of bisphenol A (DGEBA) epoxy resin and a bislactone has been studied with different initiators. The kinetics of the process has been dealt with in detail, and it has ... -
Crosslinking of mixtures of DGEBA with 1,6-dioxaspiro[4,4]nonan-2,7-dione initiated by tertiary amines. Part IV. Effect of hydroxyl groups on initiation and curing kinetics
(Elsevier, 2010-01-06)
Article
Restricted access - publisher's policyThe anionic homopolymerization of DGEBA epoxy resin and its anionic copolymerization with a bislactone was studied using two alternative tertiary amines, 1-methylimidazole (1MI) and dimethylaminopyridine (DMAP) as initiators. ... -
Crosslinking of mixtures of diglycidylether of bisphenol-A with 1,6-dioxaspiro[4.4] nonan-2,7-dione initiated by tertiary amines: III. Effect of hydroxyl groups on network formation
(2009-12)
Article
Restricted access - publisher's policy -
Curado “Click” secuencial de mezclas tiol-acetoacetato-acrilato, catalizada por una fotobase latente
(2016)
Conference lecture
Restricted access - publisher's policy -
Curat tèrmic i fotocurat de resines epoxi per al control químic de la contracció i millora de la degradabilitat
(Universitat Politècnica de Catalunya, 2009-07-10)
Doctoral thesis
Open AccessS’ha estudiat la copolimerització de resines epoxi amb una spirobislactona com a comonòmer per tal de controlar la contracció química durant el curat i millorar la seva degradabilitat per tal d’afavorir la seva recuperació ... -
Cure kinetics modeling and thermomechanical properties of cycloaliphatic epoxy-anhydride thermosets modified with hyperstar polymers
(2014-09-15)
Article
Restricted access - publisher's policyHyperstar polymers (HSPs) with hyperbranched aromatic polyester core and arms consisting of block copolymers of poly(methyl methacrylate) and poly(hydroxyethyl methacrylate) have been used as polymeric modifiers in ... -
Curing and thermomechanical properties of off-stoichiometric anhydride-epoxy thermosets
(Springer, 2019-11)
Article
Open Accessn the present work, we report the preparation and characterization of a new family of thermosets based on off-stoichiometric anhydride–epoxy formulations in the presence of an anionic initiator. Diglycidyl ether of bisphenol ... -
Curing kinetics and characterization of dual-curable thiol-acrylate-epoxy thermosets with latent reactivity
(2018-01)
Article
Open AccessA new dual-curing scheme was developed for thiol-acrylate-epoxy mixtures. A photo-initiated latent catalytic system was used to carry out thiol-acrylate Michael addition at 35 °C (Stage 1) followed by thiol-epoxy click ... -
Curing kinetics of acrylate-based and 3D printable IPNs
(2020-10-01)
Article
Restricted access - publisher's policyIn this work, the kinetics of curing of a new family of interpenetrating polymer networks (IPNs) obtained by co-formulation of a photocurable acrylic resin with a thermocurable epoxy/anhydride mixture is studied. The first ... -
Curing kinetics of dually-processed acrylate-epoxy 3D printing resins
(2021-07-01)
Article
Restricted access - publisher's policyIn this work, the curing kinetics of a new ternary acrylate/epoxy/anhydride thermoset system which is used for dual-curing 3D-printing applications is studied. The first curing stage is an acrylate free-radical photopolymerization ...
